Emerald Harvest Cali Pro Bloom B, 1 US gal / 3.79 L is a crucial component of a two-part nutrient system designed to maximize yields during the flowering stage of plant growth. This product, typically used in hydroponic or soil-based cultivation, works in conjunction with Cali Pro Bloom A to provide plants with the essential elements they require for robust blooming and fruiting.   ... https://www.hydroponicstown.com/cali-pro-bloom-b-1-us-gal-3-79-l